Leptonic CP violating phase in the light neutrino sector and leptogenesis via present matter-antimatter asymmetry of the Universe entails each other. Probing CP violation in light neutrino oscillation is one of the challenging tasks today. The reactor mixing anglemeasured in reactor experiments, LBL, and DUNE with high precision in neutrino experiments indicates towards the vast dimensions of scope to detect . The correlation between leptonic Dirac CPV phase , reactor mixing angle , lightest neutrino mass , and matter-antimatter asymmetry of the Universe within the framework of symmetry breaking assuming the type I seesaw dominance is extensively studied here. Here, a SO(10) GUT model with flavor symmetry is considered. In this work, the idea is to link baryogenesis through leptogenesis and the hint of CP violation in the neutrino oscillation data to a breaking of the mu-tau symmetry. Small tiny breaking of the symmetry allows a large Dirac CP violating phase in neutrino oscillation which in turn is characterized by awareness of measured value of and to provide a hint towards a better understanding of the experimentally observed near-maximal value ofmixing angle. Precise breaking of the symmetry is achieved by adding a 120-plet Higgs to the-dimensional representation of Higgs. The estimated three-dimensional density parameter space of the lightest neutrino mass , , and reactor mixing angle is constrained here for the requirement of producing the observed value of baryon asymmetry of the Universe through the mechanism of leptogenesis. Carrying out numerical analysis, the allowed parameter space of , , and is found out which can produce the observed baryon to photon density ratio of the Universe.

中文翻译：

---

破碎对称性在相关，最轻的中微子质量和无中微子双β衰变中的意义

轻中微子扇形中的轻子CP违反相和通过现时物质-反物质不对称性而产生的瘦子彼此相关。在轻中微子振荡中探测CP违规是当今的一项艰巨任务。在中微子实验中，在反应堆实验，LBL和DUNE中以高精度测量的反应堆混合角表明，检测范围广阔。轻子狄拉克CPV相位之间的相关性，反应器混合角，最轻中微子质量，框架内和宇宙的物质-反物质不对称假设我以跷跷板优势为类型的对称破坏在这里得到了广泛的研究。在这里，考虑具有风味对称性的SO（10）GUT模型。在这项工作中，我们的想法是将通过瘦素形成产生的重生作用和中微子振荡数据中CP破坏的暗示与mu-tau对称性的破坏联系起来。对称性的微小破坏允许中微子振荡中出现较大的Dirac CP破坏相，这反过来又具有以下特征：认识到的测量值，并为更好地理解实验观察到的混合角近最大值提供了提示。。对称性的精确破坏是通过在轨道上增加一个120-plet的希格斯来实现的。-希格斯的尺寸表示。最轻中微子质量的估计三维密度参数空间，，和反应器内混合的角度在这里为限制通过leptogenesis的机制产生宇宙的重子不对称性的观测值的要求。进行数值分析，所允许的参数空间，，和是发现了能产生所观察到的重子到宇宙的光子密度比。